Extensively illustrated, this atlas is a manual for the establishment and realization of PGD within the framework of assisted reproduction and genetics services. Fully revised and updated, the atlas includes descriptions of the authors' pioneering work on polar body based PGD for genetic and chromosomal disorders. The authors' novel experience of PGD for late-onset disorders with genetic predisposition will be of special interest. Their accumulated PGD experience for poor-prognosis IVF patients presents further evidence of the improvement of clinical outcome and the requirement for meiotic error testing for a higher accuracy of preselecting aneuploidy-free embryos for transfer.